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                    volatile&synchronized
            
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                    thread
            
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                    线程池的工作原理
            
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                    lock&ReentrantLock&ReadWriteLock
            
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                    lock&condition
            
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                    Java同步工具类- CountDownLatch&CyclicBarrier&Semaphore  
            
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                    SpringBoot
            
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                    mybatis中操作元数据
            
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                    【分布式】sharding-jdbc实现分库分表
            
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                    SQL常用使用
            
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                    redis学习笔记
            
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                    Redis中的队列list实现秒杀活动抢购
            
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                    mysql绿色版安装服务教程
            
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                    H2内嵌数据的使用
            
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                    缓存
            
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                    MySQL单表备份还原
            
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                    web简单积累
            
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                    linux常用命令
            
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                    windows常用命令
            
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                    spring security 配置发生错误 Can't configure antMatchers after anyRequest
            
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        <li class="chapter " data-level="25.1" data-path="../error/AOP_stream_close_error.html">
            
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                    AOP内获取了对请求流操作后报流已经关闭错误的问题
            
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        <li class="chapter " data-level="26.1" data-path="../tools/github/github_ssh.html">
            
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                    Github ssh key 解决提交后push频繁输入用户名和密码
            
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                    sharding-jdbc-4.1.1版本启动数据源报错问题
            
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                                <div id="anchor-navigation-ex-navbar"><i class="fa fa-navicon"></i><ul><li><span class="title-icon "></span><a href="#java&#x5E8F;&#x5217;&#x5316;"><b></b>Java&#x5E8F;&#x5217;&#x5316;</a></li><ul><li><span class="title-icon "></span><a href="#&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;serializable"><b></b>&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;Serializable</a></li><ul><li><span class="title-icon "></span><a href="#&#x5DE5;&#x5177;&#x7C7B;"><b></b>&#x5DE5;&#x5177;&#x7C7B;</a></li><li><span class="title-icon "></span><a href="#&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;serializable"><b></b>&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;Serializable</a></li><li><span class="title-icon "></span><a href="#&#x64CD;&#x4F5C;"><b></b>&#x64CD;&#x4F5C;</a></li></ul><li><span class="title-icon "></span><a href="#&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;externalizable"><b></b>&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;Externalizable</a></li><ul><li><span class="title-icon "></span><a href="#&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;externalizable"><b></b>&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;Externalizable</a></li><li><span class="title-icon "></span><a href="#&#x64CD;&#x4F5C;_1"><b></b>&#x64CD;&#x4F5C;</a></li></ul><li><span class="title-icon "></span><a href="#&#x4E24;&#x79CD;&#x65B9;&#x5F0F;&#x5BF9;&#x6BD4;"><b></b>&#x4E24;&#x79CD;&#x65B9;&#x5F0F;&#x5BF9;&#x6BD4;</a></li></ul></ul></div><h1 id="java&#x5E8F;&#x5217;&#x5316;"><a name="java&#x5E8F;&#x5217;&#x5316;" class="anchor-navigation-ex-anchor" href="#java&#x5E8F;&#x5217;&#x5316;"><i class="fa fa-link" aria-hidden="true"></i></a>Java&#x5E8F;&#x5217;&#x5316;</h1>
<p>[TOC]</p>
<p>&#x5E8F;&#x5217;&#x5316;&#xFF1A;Java&#x4E2D;&#x4E00;&#x79CD;&#x673A;&#x5236;&#xFF0C;&#x5E8F;&#x5217;&#x5316;&#xFF08;serialization&#xFF09;&#x5C31;&#x662F;&#x628A;&#x5BF9;&#x8C61;&#x7684;&#x72B6;&#x6001;&#x4FE1;&#x606F;&#x8F6C;&#x6362;&#x6210;&#x53EF;&#x4EE5;&#x5B58;&#x50A8;&#x6216;&#x4F20;&#x8F93;&#x7684;&#x5F62;&#x5F0F;&#x7684;&#x8FC7;&#x7A0B;&#xFF0C;&#x4E00;&#x822C;&#x5199;&#x5165;IO&#x6D41;&#x4E2D;&#xFF0C;&#x4EE5;&#x4E8C;&#x8FDB;&#x5236;&#x5F62;&#x5F0F;&#x6D41;&#x4F20;&#x3002;</p>
<p>&#x53CD;&#x5E8F;&#x5217;&#x5316;&#x5219;&#x662F;&#x5C06;&#x5E8F;&#x5217;&#x5316;&#x597D;&#x4E86;&#x7684;&#x5BF9;&#x8C61;&#x5199;&#x5165;&#x6587;&#x4EF6;&#x540E;&#xFF0C;&#x53EF;&#x4EE5;&#x4ECE;&#x6587;&#x4EF6;&#x4E2D;&#x8BFB;&#x53D6;&#x51FA;&#x6765;&#xFF0C;&#x5E76;&#x4E14;&#x5BF9;&#x5B83;&#x8FDB;&#x884C;&#x53CD;&#x5E8F;&#x5217;&#x5316;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x8BF4;&#xFF0C;&#x5BF9;&#x8C61;&#x7684;&#x7C7B;&#x578B;&#x4FE1;&#x606F;&#x3001;&#x5BF9;&#x8C61;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x8FD8;&#x6709;&#x5BF9;&#x8C61;&#x4E2D;&#x7684;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x5728;&#x5185;&#x5B58;&#x4E2D;&#x65B0;&#x5EFA;&#x5BF9;&#x8C61;&#x3002;</p>
<p>&#x610F;&#x4E49;&#xFF1A;&#x5E8F;&#x5217;&#x5316;&#x673A;&#x5236;&#x5141;&#x8BB8;&#x5C06;&#x5B9E;&#x73B0;&#x5E8F;&#x5217;&#x5316;&#x7684;Java&#x5BF9;&#x8C61;&#x8F6C;&#x6362;&#x4F4D;&#x5B57;&#x8282;&#x5E8F;&#x5217;&#xFF0C;&#x8FD9;&#x4E9B;&#x5B57;&#x8282;&#x5E8F;&#x5217;&#x53EF;&#x4EE5;&#x4FDD;&#x5B58;&#x5728;&#x78C1;&#x76D8;&#x4E0A;&#xFF0C;&#x6216;&#x901A;&#x8FC7;&#x7F51;&#x7EDC;&#x4F20;&#x8F93;&#xFF0C;&#x4EE5;&#x8FBE;&#x5230;&#x4EE5;&#x540E;&#x6062;&#x590D;&#x6210;&#x539F;&#x6765;&#x7684;&#x5BF9;&#x8C61;&#x3002;&#x5E8F;&#x5217;&#x5316;&#x673A;&#x5236;&#x4F7F;&#x5F97;&#x5BF9;&#x8C61;&#x53EF;&#x4EE5;&#x8131;&#x79BB;&#x7A0B;&#x5E8F;&#x7684;&#x8FD0;&#x884C;&#x800C;&#x72EC;&#x7ACB;&#x5B58;&#x5728;&#x3002;</p>
<p><strong>&#x6240;&#x6709;&#x9700;&#x8981;&#x4FDD;&#x5B58;&#x5230;&#x78C1;&#x76D8;&#x7684;java&#x5BF9;&#x8C61;&#x90FD;&#x5FC5;&#x987B;&#x662F;&#x53EF;&#x5E8F;&#x5217;&#x5316;&#x7684;&#x3002;</strong></p>
<p>Java&#x63D0;&#x4F9B;&#x7684;&#x4E24;&#x79CD;&#x5B9E;&#x73B0;&#x65B9;&#x5F0F;&#xFF1A;</p>
<p>&#x9700;&#x8981;&#x5E8F;&#x5217;&#x5316;&#x7684;&#x5BF9;&#x8C61;</p>
<ul>
<li>&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;java.io.Serializable</li>
<li>&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;java.io.Externalizable</li>
</ul>
<h2 id="&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;serializable"><a name="&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;serializable" class="anchor-navigation-ex-anchor" href="#&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;serializable"><i class="fa fa-link" aria-hidden="true"></i></a>&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;Serializable</h2>
<p>Java&#x4E2D;&#x63D0;&#x4F9B;&#x4E86; &#x7C7B; ObjectInputStream &#x548C; ObjectOutputStream &#x6570;&#x636E;&#x6D41;&#xFF0C;&#x5B83;&#x4EEC;&#x5305;&#x542B;&#x53CD;&#x5E8F;&#x5217;&#x5316;&#x548C;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x7684;&#x65B9;&#x6CD5;</p>
<h3 id="&#x5DE5;&#x5177;&#x7C7B;"><a name="&#x5DE5;&#x5177;&#x7C7B;" class="anchor-navigation-ex-anchor" href="#&#x5DE5;&#x5177;&#x7C7B;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5DE5;&#x5177;&#x7C7B;</h3>
<pre><code class="lang-java">

<span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * &#x5E8F;&#x5217;&#x5316; &#x5BF9;&#x8C61;
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;17&#x65E5; &#x4E0B;&#x5348;8:48:05
 * <span class="hljs-doctag">@param</span> object
 * <span class="hljs-doctag">@return</span>
 */</span>
<span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">byte</span>[] serialize(Object object) {

    <span class="hljs-keyword">try</span> ( ByteArrayOutputStream out = <span class="hljs-keyword">new</span> ByteArrayOutputStream();
            ObjectOutputStream writer = <span class="hljs-keyword">new</span> ObjectOutputStream(out) ; ){
        writer.writeObject(object);
        <span class="hljs-keyword">return</span> out.toByteArray();
    } <span class="hljs-keyword">catch</span> (Exception e) {
        e.printStackTrace();
    }

    <span class="hljs-keyword">return</span> <span class="hljs-keyword">new</span> <span class="hljs-keyword">byte</span>[<span class="hljs-number">0</span>] ;
}



<span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * &#x53CD;&#x5E8F;&#x5217;&#x5316; 
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;17&#x65E5; &#x4E0B;&#x5348;8:52:05
 * <span class="hljs-doctag">@param</span> obj
 * <span class="hljs-doctag">@return</span>
 */</span>
<span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> Object <span class="hljs-title">unserialize</span><span class="hljs-params">(<span class="hljs-keyword">byte</span>[] obj)</span> </span>{

    <span class="hljs-keyword">try</span> ( ByteArrayInputStream input = <span class="hljs-keyword">new</span> ByteArrayInputStream(obj);
            ObjectInputStream reader = <span class="hljs-keyword">new</span> ObjectInputStream(input); ){
        <span class="hljs-keyword">return</span> reader.readObject();
    } <span class="hljs-keyword">catch</span> (Exception e) {
        e.printStackTrace();
    }

    <span class="hljs-keyword">return</span> <span class="hljs-keyword">null</span> ;
}
</code></pre>
<h3 id="&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;serializable"><a name="&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;serializable" class="anchor-navigation-ex-anchor" href="#&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;serializable"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;Serializable</h3>
<pre><code class="lang-java"><span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * &#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#xFF0C;&#x65B9;&#x5F0F;&#x4E00;&#xFF1A;&#x5B9E;&#x73B0;&#x63A5;&#x53E3; java.io.Serializable
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;17&#x65E5; &#x4E0B;&#x5348;8:53:44
 */</span>
<span class="hljs-meta">@Data</span>
<span class="hljs-meta">@Builder</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Person</span> <span class="hljs-keyword">implements</span> <span class="hljs-title">Serializable</span></span>{

    <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> <span class="hljs-keyword">long</span> serialVersionUID = -<span class="hljs-number">5227964019276779512L</span>;

    <span class="hljs-keyword">private</span> <span class="hljs-keyword">int</span> pid ;

    <span class="hljs-keyword">private</span> String name ;

    <span class="hljs-keyword">private</span> String addr ;

    <span class="hljs-meta">@Override</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> String <span class="hljs-title">toString</span><span class="hljs-params">()</span> </span>{
        <span class="hljs-keyword">return</span> <span class="hljs-string">&quot;Person [pid=&quot;</span> + pid + <span class="hljs-string">&quot;, name=&quot;</span> + name + <span class="hljs-string">&quot;, addr=&quot;</span> + addr + <span class="hljs-string">&quot;]&quot;</span>;
    }

}
</code></pre>
<h3 id="&#x64CD;&#x4F5C;"><a name="&#x64CD;&#x4F5C;" class="anchor-navigation-ex-anchor" href="#&#x64CD;&#x4F5C;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x64CD;&#x4F5C;</h3>
<pre><code class="lang-java"><span class="hljs-comment">// &#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;</span>
Person person = Person.builder().pid(<span class="hljs-number">10</span>).name(<span class="hljs-string">&quot;&#x5927;&#x536B;&quot;</span>).addr(<span class="hljs-string">&quot;&#x6210;&#x90FD;&quot;</span>).build();

<span class="hljs-comment">// &#x5E8F;&#x5217;&#x5316;</span>
<span class="hljs-keyword">byte</span>[] serialize = serialize(person);
System.out.println(<span class="hljs-keyword">new</span> String(serialize));

<span class="hljs-comment">// &#x53CD;&#x5E8F;&#x5217;&#x5316;</span>
Object obj = unserialize(serialize);
System.out.println(obj);
</code></pre>
<h2 id="&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;externalizable"><a name="&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;externalizable" class="anchor-navigation-ex-anchor" href="#&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;externalizable"><i class="fa fa-link" aria-hidden="true"></i></a>&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;Externalizable</h2>
<h3 id="&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;externalizable"><a name="&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;externalizable" class="anchor-navigation-ex-anchor" href="#&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;externalizable"><i class="fa fa-link" aria-hidden="true"></i></a>&#x5F85;&#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#xFF1A;Externalizable</h3>
<p>&#x5B9E;&#x73B0;&#x65B9;&#x6CD5;&#xFF1A;</p>
<ul>
<li>void writeExternal(ObjectOutput out) ;</li>
<li>void readExternal(ObjectInput in) ;</li>
</ul>
<pre><code class="lang-java">
<span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * &#x5E8F;&#x5217;&#x5316;&#x5BF9;&#x8C61; &#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;17&#x65E5; &#x4E0B;&#x5348;9:23:14
 */</span>
<span class="hljs-meta">@Data</span>
<span class="hljs-meta">@Builder</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">People</span> <span class="hljs-keyword">implements</span> <span class="hljs-title">Externalizable</span></span>{


    <span class="hljs-keyword">private</span> <span class="hljs-keyword">int</span> pid ;

    <span class="hljs-keyword">private</span> String name ;

    <span class="hljs-keyword">private</span> String addr ;

    <span class="hljs-meta">@Override</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">writeExternal</span><span class="hljs-params">(ObjectOutput out)</span> <span class="hljs-keyword">throws</span> IOException </span>{
        <span class="hljs-comment">// &#x53EF;&#x4EE5;&#x81EA;&#x5B9A;&#x4E49; &#x5199;&#x5165;&#x5BF9;&#x8C61;</span>
        out.writeObject(<span class="hljs-keyword">this</span>.pid);
        out.writeObject(<span class="hljs-keyword">this</span>.name);
        out.writeObject(<span class="hljs-keyword">this</span>.addr);
        System.out.println(<span class="hljs-string">&quot;&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;&quot;</span>);
        System.out.println(<span class="hljs-string">&quot;&#x5E8F;&#x5217;&#x5316;&quot;</span>);
    }

    <span class="hljs-meta">@Override</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">readExternal</span><span class="hljs-params">(ObjectInput in)</span> <span class="hljs-keyword">throws</span> IOException, ClassNotFoundException </span>{
        <span class="hljs-comment">// &#x8BFB;&#x51FA;&#x5BF9;&#x8C61;</span>
        System.out.println(<span class="hljs-string">&quot;&#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;&quot;</span>);
        System.out.println(<span class="hljs-string">&quot;&#x53CD;&#x5E8F;&#x5217;&#x5316;&quot;</span>);
        <span class="hljs-keyword">this</span>.pid = (Integer)in.readObject();
        <span class="hljs-keyword">this</span>.name = (String)in.readObject();
        <span class="hljs-keyword">this</span>.addr = (String)in.readObject();
    }

    <span class="hljs-meta">@Override</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> String <span class="hljs-title">toString</span><span class="hljs-params">()</span> </span>{
        <span class="hljs-keyword">return</span> <span class="hljs-string">&quot;People [pid=&quot;</span> + pid + <span class="hljs-string">&quot;, name=&quot;</span> + name + <span class="hljs-string">&quot;, addr=&quot;</span> + addr + <span class="hljs-string">&quot;]&quot;</span>;
    }



    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-title">People</span><span class="hljs-params">(<span class="hljs-keyword">int</span> pid, String name, String addr)</span> </span>{
        <span class="hljs-keyword">this</span>.pid = pid;
        <span class="hljs-keyword">this</span>.name = name;
        <span class="hljs-keyword">this</span>.addr = addr;
    }

    <span class="hljs-comment">// &#x5FC5;&#x987B;&#x8981;&#x65E0;&#x53C2;&#x6784;&#x9020;&#x51FD;&#x6570;</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-title">People</span><span class="hljs-params">()</span> </span>{ }

}
</code></pre>
<h3 id="&#x64CD;&#x4F5C;_1"><a name="&#x64CD;&#x4F5C;_1" class="anchor-navigation-ex-anchor" href="#&#x64CD;&#x4F5C;_1"><i class="fa fa-link" aria-hidden="true"></i></a>&#x64CD;&#x4F5C;</h3>
<pre><code class="lang-java"><span class="hljs-comment">//    &#x65B9;&#x5F0F;&#x4E8C;&#xFF1A;</span>
People people = People.builder().pid(<span class="hljs-number">11</span>).name(<span class="hljs-string">&quot;&#x5F20;&#x4E09;&quot;</span>).addr(<span class="hljs-string">&quot;&#x6210;&#x90FD;&quot;</span>).build();

<span class="hljs-comment">// &#x5E8F;&#x5217;&#x5316;</span>
<span class="hljs-keyword">byte</span>[] serialize = serialize(people);
System.out.println(<span class="hljs-keyword">new</span> String(serialize));

<span class="hljs-comment">// &#x53CD;&#x5E8F;&#x5217;&#x5316;</span>
Object obj = unserialize(serialize);
<span class="hljs-comment">// People [pid=11, name=&#x5F20;&#x4E09;, addr=&#x6210;&#x90FD;]</span>
System.out.println(obj);
</code></pre>
<h2 id="&#x4E24;&#x79CD;&#x65B9;&#x5F0F;&#x5BF9;&#x6BD4;"><a name="&#x4E24;&#x79CD;&#x65B9;&#x5F0F;&#x5BF9;&#x6BD4;" class="anchor-navigation-ex-anchor" href="#&#x4E24;&#x79CD;&#x65B9;&#x5F0F;&#x5BF9;&#x6BD4;"><i class="fa fa-link" aria-hidden="true"></i></a>&#x4E24;&#x79CD;&#x65B9;&#x5F0F;&#x5BF9;&#x6BD4;</h2>
<table>
<thead>
<tr>
<th style="text-align:left">&#x5B9E;&#x73B0;Serializable&#x63A5;&#x53E3;</th>
<th style="text-align:left">&#x5B9E;&#x73B0;Externalizable&#x63A5;&#x53E3;</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:left">&#x7CFB;&#x7EDF;&#x81EA;&#x52A8;&#x5B58;&#x50A8;&#x5FC5;&#x8981;&#x7684;&#x4FE1;&#x606F;</td>
<td style="text-align:left">&#x7A0B;&#x5E8F;&#x5458;&#x51B3;&#x5B9A;&#x5B58;&#x50A8;&#x54EA;&#x4E9B;&#x4FE1;&#x606F;</td>
</tr>
<tr>
<td style="text-align:left">Java&#x5185;&#x5EFA;&#x652F;&#x6301;&#xFF0C;&#x6613;&#x4E8E;&#x5B9E;&#x73B0;&#xFF0C;&#x53EA;&#x9700;&#x8981;&#x5B9E;&#x73B0;&#x8BE5;&#x63A5;&#x53E3;&#x5373;&#x53EF;&#xFF0C;&#x65E0;&#x9700;&#x4EFB;&#x4F55;&#x4EE3;&#x7801;&#x652F;&#x6301;</td>
<td style="text-align:left">&#x5FC5;&#x987B;&#x5B9E;&#x73B0;&#x63A5;&#x53E3;&#x5185;&#x7684;&#x4E24;&#x4E2A;&#x65B9;&#x6CD5;</td>
</tr>
<tr>
<td style="text-align:left">&#x6027;&#x80FD;&#x7565;&#x5DEE;</td>
<td style="text-align:left">&#x6027;&#x80FD;&#x7565;&#x597D;</td>
</tr>
</tbody>
</table>
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2021-05-24 17:23:44
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